1. changed from the original or normal color, especially in an undesirable way

Examples

• The old photograph had become discolored with age.
• His teeth were discolored from years of smoking.
• The white shirt was discolored by the coffee stain.
• The discolored leaves indicated the plant was diseased.
• After the accident, she had a discolored bruise on her arm.
• The discolored water suggested contamination in the pipes.